Insitu soil shear measurement apparatus
US4649741A · kind A · utility
10Cited by
10References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Aug 22, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0623
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A testing apparatus for measuring soil shear strength which includes a torque motor connected to a torque shaft, torque cell and vane which extend beneath the soil surface. The torque cell is located between the shaft and the vane; and measures soil shear strength. It includes a torque transmission member on which an electrical transducer is mounted; and a housing which surrounds the transmission member and defines an annular cavity which protectively surrounds the transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.